\begin{tikzpicture}
    \def\drawingcode#1#2#3#4#5#6{
        %\tkzDrawPolygon(A,B,C,D,E)
        %\tkzDrawSegments[dashed](A,C A,D A,E)
        \tkzDrawPolygon(#1,#2,#3,#4,#5,#6)
        \tkzDrawSegments[dashed](#1,#3 #1,#4 #1,#5)
        \tkzLabelPoints[left](#1,#5,#6)
        \tkzLabelPoints[right](#2,#3)
        \tkzLabelPoints[above](#4)
    }

    \begin{scope}[scale=1.3]
        \tkzDefPoints{0/0/A, 2/0/B, 2/1.5/C, 0.8/2/D, -0.2/1.3/E, -0.4/0.6/F}
        \drawingcode{A}{B}{C}{D}{E}{F}
    \end{scope}

    \begin{scope}[xshift=4cm,scale=0.8]
        \tkzDefPoints{0/0/A', 2/0/B', 2/1.5/C', 0.8/2/D', -0.2/1.3/E', -0.4/0.6/F'}
        \drawingcode{A'}{B'}{C'}{D'}{E'}{F'}
    \end{scope}
\end{tikzpicture}

